| 摘要 |
<p>The spanner (4) is for jointing nuts and screw caps associated with hydraulic circuits, using a finely adjustable relationship between an open sleeve (1) and an open head (6) to ease access. The connection between the sleeve and head may be of the spigot and socket type with complementary teeth (2,3) and grooving preventing relative rotation. This permits fine adjustment of the angular relationship between the head and sleeve.</p> |
